11021211112 has 32 divisors (see below), whose sum is σ = 22239056520. Its totient is φ = 5101424640.

The previous prime is 11021211083. The next prime is 11021211119. The reversal of 11021211112 is 21111212011.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 5404308196 + 5616902916 = 73514^2 + 74946^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11021211092 and 11021211101.

It is not an unprimeable number, because it can be changed into a prime (11021211119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 655953 + ... + 672544.

Almost surely, 2^11021211112 is an apocalyptic number.

It is an amenable number.

11021211112 is an abundant number, since it is smaller than the sum of its proper divisors (11217845408).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11021211112 is a wasteful number, since it uses less digits than its factorization.

11021211112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1328581 (or 1328577 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 11021211112 its reverse (21111212011), we get a palindrome (32132423123).

The spelling of 11021211112 in words is "eleven billion, twenty-one million, two hundred eleven thousand, one hundred twelve".